This actually might be good timing. I’m going to want to upgrade my cluster soon anyway. When I installed the server the first time, I don’t think I got the option to specify my partition size. Is it possible to tell CENTOS to just use the entire disk?
Once I do that, is it possible to tell Hadoop to use more of the disk? To be clear when you say reinstall all the server, do you mean like the OS and everything OR just my Hadoop components? Adaryl "Bob" Wakefield, MBA Principal Mass Street Analytics, LLC 913.938.6685 www.massstreet.net<http://www.massstreet.net/> www.linkedin.com/in/bobwakefieldmba<http://www.linkedin.com/in/bobwakefieldmba> Twitter: @BobLovesData<http://twitter.com/BobLovesData> From: Philippe Kernévez [mailto:pkerne...@octo.com] Sent: Tuesday, July 18, 2017 3:48 AM To: Adaryl Wakefield <adaryl.wakefi...@hotmail.com> Cc: user@hadoop.apache.org Subject: Re: Disk maintenance Hi Adaryl, You have a disk mount issue. The log are located in /var/log, and this folder is attached to the partition "/", the first line of the output : "/dev/mapper/centos-root 50G 31G 20G 61% /" This partition has only a total space of 50Go. The main partition of you disk 866Go is for the users folder : "/home/" and is not available for logs. You have 2 solutions : 1) Recreate the partition with fdisk ( http://www.tldp.org/HOWTO/Partition/fdisk_partitioning.html ) or another tools and provide a bigger partition for "/" (between 200 and 300Go) . Then *reinstall* all the server. => it's the longer, but the cleaner way. 2) Move the logs to your biggest partition. May be in /home/logs/. For a production server, it's clearly not the recommended way. For moving the log your have to change the configuration of *all* tools like 'hdfs_log_dir_prefix' property in hadoop env. It's fastidious but quicker than a full reinstallation. Regards, Philippe On Tue, Jul 18, 2017 at 5:47 AM, Adaryl Wakefield <adaryl.wakefi...@hotmail.com<mailto:adaryl.wakefi...@hotmail.com>> wrote: Sorry for the slow response. I have to do this in my off hours. Here is the output. Filesystem Size Used Avail Use% Mounted on /dev/mapper/centos-root 50G 31G 20G 61% / devtmpfs 16G 0 16G 0% /dev tmpfs 16G 8.0K 16G 1% /dev/shm tmpfs 16G 18M 16G 1% /run tmpfs 16G 0 16G 0% /sys/fs/cgroup /dev/sda1 494M 173M 321M 36% /boot /dev/mapper/centos-home 866G 48M 866G 1% /home tmpfs 3.1G 0 3.1G 0% /run/user/1000 tmpfs 3.1G 0 3.1G 0% /run/user/1006 tmpfs 3.1G 0 3.1G 0% /run/user/1003 tmpfs 3.1G 0 3.1G 0% /run/user/1004 tmpfs 3.1G 0 3.1G 0% /run/user/1016 tmpfs 3.1G 0 3.1G 0% /run/user/1020 tmpfs 3.1G 0 3.1G 0% /run/user/1015 tmpfs 3.1G 0 3.1G 0% /run/user/1021 tmpfs 3.1G 0 3.1G 0% /run/user/1012 tmpfs 3.1G 0 3.1G 0% /run/user/1018 tmpfs 3.1G 0 3.1G 0% /run/user/1002 tmpfs 3.1G 0 3.1G 0% /run/user/1009 Adaryl "Bob" Wakefield, MBA Principal Mass Street Analytics, LLC 913.938.6685<tel:(913)%20938-6685> www.massstreet.net<http://www.massstreet.net/> www.linkedin.com/in/bobwakefieldmba<http://www.linkedin.com/in/bobwakefieldmba> Twitter: @BobLovesData<http://twitter.com/BobLovesData> From: Philippe Kernévez [mailto:pkerne...@octo.com<mailto:pkerne...@octo.com>] Sent: Friday, July 14, 2017 3:08 AM To: Adaryl Wakefield <adaryl.wakefi...@hotmail.com<mailto:adaryl.wakefi...@hotmail.com>> Cc: user@hadoop.apache.org<mailto:user@hadoop.apache.org> Subject: Re: Disk maintenance Hi, Would you run the command 'sudo df -kh'. Regards, Philippe On Fri, Jul 14, 2017 at 6:40 AM, Adaryl Wakefield <adaryl.wakefi...@hotmail.com<mailto:adaryl.wakefi...@hotmail.com>> wrote: So I did the first command and did find some offenders: 5.9G /var/log/ambari-infra-solr 5.9G /var/log/Hadoop While those are big numbers, they are sitting on a 1TB disk. This is the actual message I’m getting: Capacity Used: [60.52%, 32.5 GB], Capacity Total: [53.7 GB], path=/usr/hdp I figured out that HDFS isn’t actually taking up the whole disk which I didn’t know. I figured out how to expand that but before I do that, I want to know what is eating my space. I ran your command again with a modification: sudo du -h --max-depth=1 /usr/hdp That output is shown here: 395M /usr/hdp/share 4.8G /usr/hdp/2.5.0.0-1245 4.0K /usr/hdp/current 5.2G /usr/hdp None of that adds up to 32.5 GB. Adaryl "Bob" Wakefield, MBA Principal Mass Street Analytics, LLC 913.938.6685<tel:(913)%20938-6685> www.massstreet.net<http://www.massstreet.net/> www.linkedin.com/in/bobwakefieldmba<http://www.linkedin.com/in/bobwakefieldmba> Twitter: @BobLovesData<http://twitter.com/BobLovesData> From: Shane Kumpf [mailto:shane.kumpf.apa...@gmail.com<mailto:shane.kumpf.apa...@gmail.com>] Sent: Wednesday, July 12, 2017 7:17 AM To: Adaryl Wakefield <adaryl.wakefi...@hotmail.com<mailto:adaryl.wakefi...@hotmail.com>> Cc: user@hadoop.apache.org<mailto:user@hadoop.apache.org> Subject: Re: Disk maintenance Hello Bob, It's difficult to say based on the information provided, but I would suspect namenode and datanode logs to be the culprit. What does "sudo du -h --max-depth=1 /var/log" return? If it is not logs, is there a specific filesystem/directory that you see filling up/alerting? i.e. /, /var, /data, etc? If you are unsure, you can start at / to try to track down where the space is going via "sudo du -xm --max-depth=1 / | sort -rn" and then walk the filesystem hierarchy for the directory listed as using the most space (change / in the previous command to the directory reported as using all the space, continue that process until you locate the files using up all the space). -Shane On Tue, Jul 11, 2017 at 9:22 PM, Adaryl Wakefield <adaryl.wakefi...@hotmail.com<mailto:adaryl.wakefi...@hotmail.com>> wrote: I'm running a test cluster that normally has no data in it. Despite that, I've been getting warnings of disk space usage. Something is growing on disk and I'm not sure what. Are there scrips that I should be running to clean out logs or something? What is really interesting is that this is only affecting the name node and one data node. The other data node isn’t having a space issue. I'm running Hortonworks Data Platform 2.5 with HDFS 2.7.3 on CENTOS 7. I thought it might be a Linux issue but the problem is clearly confined to the parts of the disk taken up by HDFS. Adaryl "Bob" Wakefield, MBA Principal Mass Street Analytics, LLC 913.938.6685<tel:(913)%20938-6685> www.massstreet.net<http://www.massstreet.net/> www.linkedin.com/in/bobwakefieldmba<http://www.linkedin.com/in/bobwakefieldmba> Twitter: @BobLovesData<http://twitter.com/BobLovesData> -- Philippe Kernévez Directeur technique (Suisse), pkerne...@octo.com<mailto:pkerne...@octo.com> +41 79 888 33 32<tel:+41%2079%20888%2033%2032> Retrouvez OCTO sur OCTO Talk : http://blog.octo.com OCTO Technology http://www.octo.ch -- Philippe Kernévez Directeur technique (Suisse), pkerne...@octo.com<mailto:pkerne...@octo.com> +41 79 888 33 32 Retrouvez OCTO sur OCTO Talk : http://blog.octo.com OCTO Technology http://www.octo.ch
